# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2012 OpenStack, LLC
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import nose
import unittest2 as unittest

from tempest import exceptions
from tempest import openstack
from tempest.common.utils.data_utils import rand_name


class BaseNetworkTest(unittest.TestCase):

    os = openstack.Manager()
    client = os.network_client
    config = os.config
    networks = []
    enabled = True

    # Validate that there is even an endpoint configured
    # for networks, and mark the attr for skipping if not
    try:
        client.list_networks()
    except exceptions.EndpointNotFound:
        enabled = False
        skip_msg = "No network endpoint"

    @classmethod
    def setUpClass(cls):
        if not cls.enabled:
            raise nose.SkipTest(cls.skip_msg)

    @classmethod
    def tearDownClass(cls):
        for network in cls.networks:
            cls.client.delete_network(network['id'])

    def create_network(self, network_name=None):
        """Wrapper utility that returns a test network"""
        network_name = network_name or rand_name('test-network')

        resp, body = self.client.create_network(network_name)
        network = body['network']
        self.networks.append(network)
        return network